Open source MP3 player module SD card Music DFPlayer Mini MP3 Player player
MH2024K MP3 Player Decoder Module Card Reader DFPlayer UART DF player
 
Introduction:
The DFPlayer Mini MP3 Player is a small and low price MP3 module with an simplified output directly to the speaker. The module can be used as a stand alone module with attached battery, speaker and push buttons or used in combination with an Arduino UNO or any other with RX/TX capabilities.
 
Specification:
 Supported sampling rates (kHz): 8/11.025/12/16/22.05/24/32/44.1/48
 24 -bit DAC output, support for dynamic range 90dB , SNR support 85dB
 Fully supports FAT16 , FAT32 file system, maximum support 32G of the TF card, support 32G of U disk, 64M bytes NORFLASH
 A variety of control modes, I/O control mode, serial mode, AD button control mode
 Advertising sound waiting function, the music can be suspended. when advertising is over in the music continue to play
 Audio data sorted by folder, supports up to 100 folders, every folder can hold up to 255 songs
 30 level adjustable volume, 6 -level EQ adjustable
Supports 3.3 V - 5 V power supply.
 
 
The MP3 player decoder micro module are based on different chips, such as: YF5200 chip, MH2024K chip, JL AAxxxx chip from Jieli, etc..
 
Application:
 ● Car navigation voice broadcast;
 ● Road transport inspectors, toll stations voice prompts;
 ● Railway station, bus safety inspection voice prompts;
 ● Electricity, communications, financial business hall voice prompts;
 ● Vehicle into and out of the channel verify that the voice prompts;
 ● The public security border control channel voice prompts;
 ● Multi-channel voice alarm or equipment operating guide voice;
 ● The electric tourist car safe driving voice notices;
 ● Electromechanical equipment failure alarm;
 ● Fire alarm voice prompts;
 ● The automatic broadcast equipment, regular broadcast.
 
Resources:
1. Tutorial of MP3-TF-16P
2. DFPlayer Mini Arduino library 
3. DF mp3 player module datasheet
4. MP3 Player With Arduino Using DF Player Mini